GREAT CROW-BLACKBIRD. 
41 
they were very gentle, and allowed themselves to be approached 
within a few feet, without becoming alarmed. Flocks composed 
of both sexes were seen about the middle of March. 
About the latter end of November, they leave even the warm 
region of Florida, to seek winter quarters farther south, probably 
in the West Indies. Previous to their departure, they assemble in 
very large flocks, and detachments are seen every morning moving 
southward, flying at a great height. The males appear to migrate 
later than the females, as not more than one female (easily distin¬ 
guishable even in the higher regions of the air by its much smaller 
size) is observed for a hundred males, in the last flocks. 
The Great Crow-Blackbird is also very numerous in the West 
Indies, Mexico and Louisiana; but it does not frequent the north¬ 
ern, or even the middle states, like the Common Crow-Blackbird. 
Our opinion that the Corvus mexicanus of authors is the male of 
this species, and their Corvus zanoe the female, is corroborated by 
the male and female Great Crow-Blackbird being seen in separate 
flocks. 
VOL. I.-L 
